When Ukraine turned a corner of Russia’s Kursk region into a battlefield, it set in motion some of the war’s fiercest fighting. Our photographer documented the aftermath.

By day, the Ukrainian capital hums with life. Metros are crowded, dog walkers abound, and children play on playgrounds.

EXCLUSIVE: One of the most visceral and terrifying depictions of war ever recorded is about to make its way to U.S. theaters.

Kyiv is defending Kostiantynivka from Russian drone attacks. The embattled city is a gateway to Ukraine’s last major defense ...